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CHAPTER LV DAY AND NIGHT
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“IT seems to me,” said Claire, “we have lost sight of the hearth1 that turns with its lighted firebrands around the lark2.”

“On the contrary, we are closer to it than ever. If the sun, which is thirty-eight millions of leagues from us, were to go around the earth every day, do you know how far it would have to go in a minute? More than 100,000 leagues. But this incomprehensible speed is nothing. The stars, as I have just told you, are so many suns, comparable to ours in volume and brilliancy; only they are much farther away, and that is what makes them appear so small. The nearest is about thirty thousand times as distant as the sun. Accordingly, in order to go around the earth in twenty-four hours, as it appears to do, it would have to move at the rate of thirty thousand times 100,000 leagues a minute. And how would it be with other stars a hundred times, a thousand times, a million times farther away—stars which, despite their distance, would all have to accomplish their journey around the earth always in exactly twenty-four hours? And remember, furthermore, the prodigious3 size of the sun. You want it, the giant, the colossus, beside which the earth is only a lump of clay, to circle at an impossible speed in infinite space, in order to give light and heat to our planet; you want thousands and thousands of other suns, quite as large and immensely farther off—in a word, the stars—to accomplish also, with velocities4 increasing according to the distance, a daily journey around this humble5 terrestrial globe! No! no! such an arrangement is contrary to reason; to allow it is to want to make the firebrands, the hearth, the whole house, turn around a little bird on a spit.”

“Then it is the earth that turns, and we turn with it,” Claire again interposed. “In consequence of this movement the sun and stars seem to us to move in the opposite direction, like trees and houses when we are on the train. Since the sun seems to go around the earth from east to west in twenty-four hours, it is a proof that the earth turns on its axis6 from west to east in twenty-four hours.”

“The earth turns in front of the sun in a manner to present its different parts successively to the rays of that body; it pirouettes on its axis like a top. Moreover, while it thus rotates in twenty-four hours, it revolves7 around the sun in the interval8 of a year. In playing with a top you find a good example of two analogous9 movements executed together. When the top turns on its point, not moving from the same place—in short, when it sleeps—it has only the movement of rotation10. But in throwing it in a certain way, you know better than I that it circles on the ground while turning on its point. In that instance, it represents in a small way the double movement of the earth. Its rotation on its point represents the whirling motion of the earth on its axis; its course on the ground represents the earth’s revolution around the sun.

“You can familiarize yourself in another way with the double movement of the terrestrial globe, as follows: place in the middle of a room a round table, and on that table a lighted candle to represent the sun. Then circle around the table, pirouetting on your toes. Each of your pirouettes corresponds to a turn of the earth on its axis, and your course around the table corresponds to its journey around the sun. Notice that in turning on your toes you present in succession to the rays of the candle the front, one side, the back, and the other side of your head, which in our experiment may represent the terrestrial globe; so that each one of its parts is in turn in the light or in the shade. The earth does the same: in turning it presents one after the other its different regions to the rays of the sun. It is day for the region that sees the sun, night for the opposite region. That is the very simple cause of day and night. In twenty-four hours the earth makes one rotation on its axis. Of these twenty-four hours the duration of the day and night is composed.”

“I understand very well the cause of the alternation of day and night,” said Jules. “It is day for the half of the earth that sees the sun, night for the opposite half. But as the globe turns, each country comes in succession to face the sun while others pass into the unlighted half. The lark that turns on the hearth presents, in the same way, each of its sides in turn to the heat of the flame.”

“One might almost say,” remarked Emile, “it is day for the half of the lark next to the fire, and night for the other half.”

“One difficulty still perplexes me,” Jules continued. “If the earth turns around once in every twenty-four hours, in half of that time we ought to make a half-turn with the globe that carries us, and find ourselves upside-down. At this moment we have our heads up, feet down; twelve hours later it will be just the opposite: our heads will be down and our feet up. We are upright, we shall be upside-down. In that inconvenient11 position why don’t we feel uncomfortable? Why are we not thrown down? So as not to fall, it seems to me, we ought to be obliged to cling to the ground in desperation.”

“Your observation is right,” returned Uncle Paul, “but only in a certain degree. Yes, it is true that twelve hours from now we shall be in an inverse12 position; our heads will be toward that point in space to which our feet are now turned. But despite this inversion13 there will be no danger of our falling, nor even the slightest inconvenience of any kind; for our heads will always be up, that is to say toward the sky, since the sky surrounds the terrestrial globe everywhere; our feet will always be down, that is to say resting on the ground. Understand thoroughly14, once for all, that to fall is to rush toward the ground, and not into surrounding space. So that notwithstanding all the evolutions of our globe, as we are always on the earth, feet on the ground, head toward the sky, we are always in an upright position, without any unpleasant feeling, without any danger of falling.”

“Does the terrestrial globe turn very fast?” Emile inquired.

“It turns on its axis once in twenty-four hours. Therefore any point in its middle region, the region that makes the longest journey, travels in the same time forty millions of meters, that is to say a journey equal to the circuit of the earth, or 462 meters a second. That is about the speed of a cannon-ball as it leaves the cannon’s mouth, or about thirty times the speed of the fastest locomotive. Mountains, plains, seas, apparently16 fixed17 in their places for time and for eternity18, are perpetually chasing one another in a circle, with the formidable speed of more than one-tenth of a league a second.”

“And yet everything seems to us to be stationary19.”

“Without the jolting20 of the car should we not think we were standing15 still when the train carries us with such frightful21 speed? Well, the rapid movement of the earth is at the same time so gentle that it is impossible to be aware of it except by the apparent motion of the stars.”

“By rising to a certain height in a balloon,” said Jules, “we ought to see the earth turning under us. Seas and their islands, continents with their empires, forests, and mountains, ought in succession to come under the eyes of the observer, who in twenty-four hours sees the turning of the whole earth. What a magnificent spectacle that must be! What a journey, so wonderful and with so little fatigue22! When the rotation brings back one’s own country, one descends23 and it is accomplished25. In twenty-four hours, without changing place, one has seen the whole world.”

“Yes, I agree with you, it would be an admirable way to see countries. To this spot where we are other peoples will come, brought by the rotation; seas, distant regions, snowy mountains will take our place; and to-morrow at the same hour we shall be here again. Where we are talking now, in the shade of the juniper-trees, first will pass the sea, the somber26 Atlantic, which will replace our conversation by the grand voice of its waves. In less than an hour the ocean will be here. Some large war-vessel, with its triple row of guns, will float perhaps, all sails set, over the spot we are occupying. The sea has passed. Now we have North America, the great Canadian lakes, and the interminable prairies where the red-skinned Indians hunt buffaloes27. The sea begins again, much larger than the Atlantic; it takes nearly seven hours to pass. What line of islands is this where fishermen wrapped in furs are drying herrings? They are the Koorile Isles28, south of Kamchatka. They pass quickly; we scarcely have time to give them a glance. Now it is the turn of the yellow-faces—the Mongolians and Chinese, with slanting29 eyes. Oh! what curious things we could see here! But the ball is always turning, and China is already in the distance. The sandy plateaus of Central Asia and mountains higher than the clouds come next. Here are the pastures of the Tartars, with neighing herds30 of mares; here are the grassy31 plains of the Caspian with the flat-nosed Cossacks; then southern Russia, Austria, Germany, Switzerland, and finally France. Let us descend24 quickly, get on to our feet; the earth has finished its rotation.

“Do not for an instant, my little friends, think that this giddy spectacle of the earth passing with the rapidity of a cannon-ball would be visible to any but spiritual eyes. By rising into the upper air in a balloon, as Jules said, it does at first seem as if we ought to see the earth turning and lands and seas passing under our feet. Nothing of the kind takes place, for the atmosphere turns with the terrestrial globe and drags the balloon in the general rotation, instead of leaving it at rest, as would be necessary if the observer were to have successively under his eyes the different regions of the earth.”

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1 hearth n5by9     
n.壁炉炉床,壁炉地面
参考例句:
  • She came and sat in a chair before the hearth.她走过来,在炉子前面的椅子上坐下。
  • She comes to the hearth,and switches on the electric light there.她走到壁炉那里,打开电灯。
2 lark r9Fza     
n.云雀,百灵鸟;n.嬉戏,玩笑;vi.嬉戏
参考例句:
  • He thinks it cruel to confine a lark in a cage.他认为把云雀关在笼子里太残忍了。
  • She lived in the village with her grandparents as cheerful as a lark.她同祖父母一起住在乡间非常快活。
3 prodigious C1ZzO     
adj.惊人的,奇妙的;异常的;巨大的;庞大的
参考例句:
  • This business generates cash in prodigious amounts.这种业务收益丰厚。
  • He impressed all who met him with his prodigious memory.他惊人的记忆力让所有见过他的人都印象深刻。
4 velocities 64d80206fdcbbf917808c5b00e0a8ff5     
n.速度( velocity的名词复数 );高速,快速
参考例句:
  • In experimenting we find out that sound travels with different velocities through different substances. 在实验中,我们发现声音以不同的速度通过不同的物质而传播。 来自《现代汉英综合大词典》
  • A gas in thermal equilibrium has particles of all velocities. 处于热平衡的气体,其粒子有一切速度。 来自辞典例句
5 humble ddjzU     
adj.谦卑的,恭顺的;地位低下的;v.降低,贬低
参考例句:
  • In my humble opinion,he will win the election.依我拙见,他将在选举中获胜。
  • Defeat and failure make people humble.挫折与失败会使人谦卑。
6 axis sdXyz     
n.轴,轴线,中心线;坐标轴,基准线
参考例句:
  • The earth's axis is the line between the North and South Poles.地轴是南北极之间的线。
  • The axis of a circle is its diameter.圆的轴线是其直径。
7 revolves 63fec560e495199631aad0cc33ccb782     
v.(使)旋转( revolve的第三人称单数 );细想
参考例句:
  • The earth revolves both round the sun and on its own axis. 地球既公转又自转。 来自《现代汉英综合大词典》
  • Thus a wheel revolves on its axle. 于是,轮子在轴上旋转。 来自《简明英汉词典》
8 interval 85kxY     
n.间隔,间距;幕间休息,中场休息
参考例句:
  • The interval between the two trees measures 40 feet.这两棵树的间隔是40英尺。
  • There was a long interval before he anwsered the telephone.隔了好久他才回了电话。
9 analogous aLdyQ     
adj.相似的;类似的
参考例句:
  • The two situations are roughly analogous.两种情況大致相似。
  • The company is in a position closely analogous to that of its main rival.该公司与主要竞争对手的处境极为相似。
10 rotation LXmxE     
n.旋转;循环,轮流
参考例句:
  • Crop rotation helps prevent soil erosion.农作物轮作有助于防止水土流失。
  • The workers in this workshop do day and night shifts in weekly rotation.这个车间的工人上白班和上夜班每周轮换一次。
11 inconvenient m4hy5     
adj.不方便的,令人感到麻烦的
参考例句:
  • You have come at a very inconvenient time.你来得最不适时。
  • Will it be inconvenient for him to attend that meeting?他参加那次会议会不方便吗?
12 inverse GR6zs     
adj.相反的,倒转的,反转的;n.相反之物;v.倒转
参考例句:
  • Evil is the inverse of good.恶是善的反面。
  • When the direct approach failed he tried the inverse.当直接方法失败时,他尝试相反的做法。
13 inversion pRWzr     
n.反向,倒转,倒置
参考例句:
  • But sometimes there is an unusual weather condition called a temperature inversion.但有时会有一种被称作“温度逆增”的不平常的天气状态。
  • And finally,we made a discussion on the problems in the cooperative inversion.最后,对联合反演中存在的问题进行了讨论。
14 thoroughly sgmz0J     
adv.完全地,彻底地,十足地
参考例句:
  • The soil must be thoroughly turned over before planting.一定要先把土地深翻一遍再下种。
  • The soldiers have been thoroughly instructed in the care of their weapons.士兵们都系统地接受过保护武器的训练。
15 standing 2hCzgo     
n.持续,地位;adj.永久的,不动的,直立的,不流动的
参考例句:
  • After the earthquake only a few houses were left standing.地震过后只有几幢房屋还立着。
  • They're standing out against any change in the law.他们坚决反对对法律做任何修改。
16 apparently tMmyQ     
adv.显然地;表面上,似乎
参考例句:
  • An apparently blind alley leads suddenly into an open space.山穷水尽,豁然开朗。
  • He was apparently much surprised at the news.他对那个消息显然感到十分惊异。
17 fixed JsKzzj     
adj.固定的,不变的,准备好的;(计算机)固定的
参考例句:
  • Have you two fixed on a date for the wedding yet?你们俩选定婚期了吗?
  • Once the aim is fixed,we should not change it arbitrarily.目标一旦确定,我们就不应该随意改变。
18 eternity Aiwz7     
n.不朽,来世;永恒,无穷
参考例句:
  • The dull play seemed to last an eternity.这场乏味的剧似乎演个没完没了。
  • Finally,Ying Tai and Shan Bo could be together for all of eternity.英台和山伯终能双宿双飞,永世相随。
19 stationary CuAwc     
adj.固定的,静止不动的
参考例句:
  • A stationary object is easy to be aimed at.一个静止不动的物体是容易瞄准的。
  • Wait until the bus is stationary before you get off.你要等公共汽车停稳了再下车。
20 jolting 5p8zvh     
adj.令人震惊的
参考例句:
  • 'she should be all right from the plane's jolting by now. “飞机震荡应该过了。
  • This is perhaps the most jolting comment of all. 这恐怕是最令人震惊的评论。
21 frightful Ghmxw     
adj.可怕的;讨厌的
参考例句:
  • How frightful to have a husband who snores!有一个发鼾声的丈夫多讨厌啊!
  • We're having frightful weather these days.这几天天气坏极了。
22 fatigue PhVzV     
n.疲劳,劳累
参考例句:
  • The old lady can't bear the fatigue of a long journey.这位老妇人不能忍受长途旅行的疲劳。
  • I have got over my weakness and fatigue.我已从虚弱和疲劳中恢复过来了。
23 descends e9fd61c3161a390a0db3b45b3a992bee     
v.下来( descend的第三人称单数 );下去;下降;下斜
参考例句:
  • This festival descends from a religious rite. 这个节日起源于宗教仪式。 来自《简明英汉词典》
  • The path descends steeply to the village. 小路陡直而下直到村子。 来自《简明英汉词典》
24 descend descend     
vt./vi.传下来,下来,下降
参考例句:
  • I hope the grace of God would descend on me.我期望上帝的恩惠。
  • We're not going to descend to such methods.我们不会沦落到使用这种手段。
25 accomplished UzwztZ     
adj.有才艺的;有造诣的;达到了的
参考例句:
  • Thanks to your help,we accomplished the task ahead of schedule.亏得你们帮忙,我们才提前完成了任务。
  • Removal of excess heat is accomplished by means of a radiator.通过散热器完成多余热量的排出。
26 somber dFmz7     
adj.昏暗的,阴天的,阴森的,忧郁的
参考例句:
  • He had a somber expression on his face.他面容忧郁。
  • His coat was a somber brown.他的衣服是暗棕色的。
27 buffaloes 8b8e10891f373d8a329c9bd0a66d9514     
n.水牛(分非洲水牛和亚洲水牛两种)( buffalo的名词复数 );(南非或北美的)野牛;威胁;恐吓
参考例句:
  • Some medieval towns raced donkeys or buffaloes. 有些中世纪的城市用驴子或水牛竞赛。 来自《简明英汉词典》
  • Water buffaloes supply Egypt with more meat than any other domestic animal. 水牛提供给埃及的肉比任何其它动物都要多。 来自辞典例句
28 isles 4c841d3b2d643e7e26f4a3932a4a886a     
岛( isle的名词复数 )
参考例句:
  • the geology of the British Isles 不列颠群岛的地质
  • The boat left for the isles. 小船驶向那些小岛。
29 slanting bfc7f3900241f29cee38d19726ae7dce     
倾斜的,歪斜的
参考例句:
  • The rain is driving [slanting] in from the south. 南边潲雨。
  • The line is slanting to the left. 这根线向左斜了。
30 herds 0a162615f6eafc3312659a54a8cdac0f     
兽群( herd的名词复数 ); 牧群; 人群; 群众
参考例句:
  • Regularly at daybreak they drive their herds to the pasture. 每天天一亮他们就把牲畜赶到草场上去。
  • There we saw herds of cows grazing on the pasture. 我们在那里看到一群群的牛在草地上吃草。
31 grassy DfBxH     
adj.盖满草的;长满草的
参考例句:
  • They sat and had their lunch on a grassy hillside.他们坐在长满草的山坡上吃午饭。
  • Cattle move freely across the grassy plain.牛群自由自在地走过草原。


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